The first crews on scene were able to extinguish the fire within 10 minutes.

The restaurant was open at the time, but no customers were inside.

The cause of the fire appears to be a faulty neon lighting system

"Fortunately somebody saw it and saw that it wasn't that large of a flame but somebody saw it in time otherwise it could have gotten inside. Pretty soon it would have been inside the roof," said Vern Johnson, Battalion Chief for the Superior Fire Department.